Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Amino acids are often described as the building blocks of proteins.

From Science Daily • Jun. 15, 2026

Amino acids are the molecular building blocks of proteins, and Lamming and his colleagues are interested in their connection to healthy aging.

From Science Daily • Nov. 22, 2023

"Amino acids are the building blocks of proteins," said Dandrea-Russert.

From Salon • Oct. 11, 2023

Amino acids can occur in two mirror-image forms, but life exclusively uses left-handed ones.

From Science Magazine • Sep. 24, 2023

Amino acids have been assembled under primitive Earth conditions into molecules resembling proteins.

From "Cosmos" by Carl Sagan